Flora of North America species comparison

nearly erect, hispid, base not bulbous.

reclining or erect, glabrous or sparsely pilose.

pedicellate;

receptacle pilose;

sepals 5, reflexed, 3-8 × 1.5-3 mm, pilose;

petals 5, 7-10 × 4-8 mm.

pedicellate;

receptacle hispid;

sepals 5, reflexed, 4-7 × 2-3 mm, sparsely bristly;

petals 5, 4-8 × 2-4.5 mm.

globose or ovoid, 5-8 × 6-7 mm;

achenes 15-35 per head, 2-3 × 2-3 mm, faces sparsely papillate or sometimes smooth, glabrous, margin smooth;

beak oblong to deltate, curved, 0.4-0.7 mm.

globose, 13-16 × 13-16 mm;

achenes 10-20 per head, 5-5.5 × 3-3.5 mm, faces covered with long spines, glabrous, margin smooth;

beak lanceolate, curved, 2-2.5 mm.

and lower cauline leaf blades ovate to cordate, 3-foliolate, 2-6 × 2-6 cm, leaflets again parted, leaflet base truncate to acute, margins crenate-dentate to crenate-lobulate, apex rounded to obtuse.

and lower cauline leaf blades broadly cordate to reniform or semicircular, undivided or 3-lobed, 2-5 × 3-6.5 cm, base rounded to cordate, margins coarsely crenate, apex rounded.